(Animation) Proton Aurora With MAVEN Data (IMAGE) NASA/Goddard Space Flight Center Caption MAVEN observations of a proton aurora. In the top panel, natural variability of the solar wind results in occasional dense flows of solar wind protons bombarding Mars. At bottom, observations by MAVEN's Imaging Ultraviolet Spectrograph show increased ultraviolet emission from the atmosphere when the solar wind is enhanced. Download animation: <a target="_blank" href="https://svs.gsfc.nasa.gov/12986">https://svs.gsfc.nasa.gov/12986</a> Credit NASA/MAVEN/University of Colorado/LASP/Anil Rao Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.